.course-switch {
    margin: 10px 30px 10px 30px;
    padding: 0 0 20px 0;
    border-bottom: 1px solid #E6E8EC;
    li {
        float: left;
        color: #333;
        margin-top: 5px;
        margin-right: 23px;
        height: 30px;
        cursor: pointer;
    }
    .selected {
        color: #3FA9F5;
        border-bottom: 3px solid #3FA9F5;
    }
}